/*
 * Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Emil Ong
 */

package com.caucho.quercus.lib.file;

import com.caucho.quercus.env.Env;

import java.util.LinkedList;

/**
 * Bucket for stream filters.
 */
public class StreamBucketBrigade {
  private LinkedList<StreamBucket> _brigade = new LinkedList<StreamBucket>();

  public StreamBucketBrigade(Env env)
  {
  }

  public void prepend(StreamBucket bucket) 
  {
    _brigade.addFirst(bucket);
  }

  public void append(StreamBucket bucket) 
  {
    _brigade.addLast(bucket);
  }

  public StreamBucket popTop()
  {
    return _brigade.removeFirst();
  }
}

